Above: Isildur1 Victor Blom will play w00ki3z, aka Daniel Cates

Isildur1, aka Viktor Blom, is to face one of the biggest challenges of his pro career this weekend when he takes on Daniel 'w00ki3z' - also known as Jungleman12 - Cates.

Isildur, 20, who famously won, then lost, then won back millions playing online was 'outed' as Blom by Pokerstars at their Carribean Adventure tournament in the Bahamas earlier this month.

He lost his first SuperStar Showdown match to Isaac Haxton in December, but returned to form to beat Tony G convincingly in his second match.

Isildur1 is set to take on his third match this coming Sunday against w00ki3z – an online pro who was one of the biggest heads-up cash game winners in 2010.

The match will take place on Sunday, January 30 at 5.30pm ET, and will be played across four tables of No Limit Hold'em at stakes of $50/$100.

A huge mystery had surrounded the identity of Isildur 1 after he took part in all ten of the largest pots in online poker history last year.But Pokerstars, who signed the young pro recently, decided to go public after his identity was widely leaked.

* Click herefor more details of the SuperStar Showdow challenge, including the rules of the match and how you can take on Isildur1